Apple Software Update

"Software Update" redirects here. For software updates in general, see Patch (computing).

Apple Software Update

Software Update in Mac OS X "Leopard"
Developer(s)	Apple Inc.
Stable release	5 (352) / July 20, 2011
Operating system	Mac OS 9 Mac OS X Windows
Type	System Utility
License	Proprietary
Website	www.apple.com/softwareupdate

Software Update is a software tool by Apple Inc. that installs the latest version of Apple software on computers running Mac OS X. It was originally introduced to Mac users in Mac OS 9. A Windows version has been available since the introduction of iTunes 7, under the name Apple Software Update. Software Update automatically informs users of new updates. It is part of the CoreServices in OS X, found at /System/Library/CoreServices/Software Update.app, or by choosing Software Update from the Apple menu. Software Update can be set to check for updates daily, weekly, monthly, or not at all; in addition, it can download and store the associated .pkg file (the same type used by Installer) to be installed at a later date and maintains a history of installed updates.

Software Updates consist of incremental updates of the Mac OS and its applications, Security Updates, device drivers and firmware updates. All software updates require a password, as with all consequential system changes. Some updates require a system restart. Starting with Mac OS X 10.5, updates that require a reboot log out the user prior to installation and automatically restart the computer when complete; in earlier versions, the updates are installed, but critical files are not replaced until the next system startup.

Command line

All of Software Update's features are available through the command-line program softwareupdate.

The command line usage for softwareupdate in Mac OS X 10.6 is:

usage: softwareupdate <mode> [<args> ...] -l | --list List all appropriate updates -d | --download Download Only -i | --install Install <label> ... specific updates -a | --all all appropriate updates -r | --recommended only recommended updates Per-user preferences: --ignore <label> ... Ignore specific updates --reset-ignored Clear all ignored updates --schedule (on | off) Set automatic checking -v | --verbose Enable verbose output -h | --help Print this help

Using this tool, it is fairly straightforward for lab administrators to automatically install incoming updates by adding a cron job, or using the new launchd scheduling system, the latter is recommended:
softwareupdate --install --all
(or just --recommended to be more cautious). It is prudent to set the job to run only every few days to allow for time to jump in with an --ignore if a particular update is reported to have issues by early adopters. If running as a cron job, it is also a good idea to avoid running the update while a user is logged in, especially since some updates require reboot to take effect. (softwareupdate does not reboot automatically, it merely displays a warning on its standard output if a reboot is necessary.) Remote administrators may also be interested in also using the cURL and installer command line utilities to set up their own software update system.

Criticism

In March 2008, Apple began offering its web browser Safari through Apple Software Update for Windows. The Safari download was selected by default for installation by Apple Software Update. After significant criticism from the IT community, Apple changed its policy and Safari was no longer selected by default for download. Apple Software Update for Windows now offers new software and an optional download, in addition to updates for already-installed software.

External links

• Using Software Update for Windows to keep your Apple software up-to-date